Signaling system.



H. 0. HUGH.

SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1, 1 14,049. Patented Oct. 20, 1914.

3 BHEBTS'SHEET 1.

@2739 Q W 29 MW- M THE NORRIS PETERS C0,. FHOTD-LITHQ, WASHINGTON. D4 C.

H. 0. RUGHQ SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1,1 14,049. v I Patented Oct. 20, 1914.

3 SHEETS-SHEET 2.

THE NORRIS PETERS C0.,PHOTD-LITH.1. WASHINGTON. D 1;

H. 0. HUGE.

SIGNALING SYSTEM.

APPLICATION FILED JAN. 20, 1911.

1, 1 14,049. Patented Oct. 2-0, 1914.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

HARRY 0. RUGH, or SANDWICH, ILLrNors, emma, BY Muslin Assrelv vrnn'rs,To HALL swrrcn & SIGNAL COMPANY, A oonronerronyor MAINE.

SIGNALING SYSTEMQ Specification of Letters lfatcnte Pat nted Oct. 20,1914.

Original application filed September 1, 1910, Serial No. 580,068.Divided and this application filed January 20,1911. Serial No. 603,679.y I

To all whom it may concern: I

Be it known that I, HARRY O. RUGH, a citizen of the United States,residing at Sandwich, in the county of Dekalb and State of Illinois,have invented a certain new and useful Improvement in Signaling Systems,of which the following is a full,"

clear, concise, and exact description, reference being had to theaccompanying drawings, forming a part of this specification.

My invention relates to signaling systems and is a divisionalapplication of a system set forth in my application Serial No. 580,068,filed Sept. 1, 1910. In my said copending application I show a callingdevice the same as set forth herein and also show it in combination witha system as setforth herein but I confine myself in the said copendingapplication to claims other thanthe claims directed to the system as awhole, which system claims are set forth in the present application.

The system under consideration contemplates step-bystepsignaling-service and is of use particularly in connection withsubstation signal receiving devices in which a restraining element forthe step-by-step element is normally not in engagement with thestep-by-step element.

The invention contemplates a system in which a call box is used which ismoved in one direction during its setting operation and which sends apredetermined number of impulses during its signal sending operationupon its reverse movement. In the system under consideration I require along impulse initially so that the restraining element may be properlyactuated to engage the teeth of the step-by-step element and thereaftera plurality of short impulses to properly set the substation devicesinposition to call a pre-determined station. i

It has usually been customary to arrange the call box so that a longimpulse is sent during its reverse movement primarilv to the sending ofthe short impulses. As the efiiciency of the system dependsupon theshortness of thetime required to make the call it is essential that thislong initial im pulse be eliminated during the reverse move ment ifpossible and my invention contemplates a system of substation devicesand a call box so arranged that the impulse which places the restrainingelement iII'QQ associaso that the reverse movement of the call box maybe taken up entirely with the sending of impulses, thus to expedite thetime of sending a call.

by reference to in which: y y y Figure 1 diagrammatically sets forth asignaling circuit with the substations conthe accompanying drawingnected; Fig. 2 is a sectional view of the call box; Fig. 3 is a view ofthe cover of thecall box showing parts of the apparatus; Fig. 4 :is asimilar view to Fig. 3sl1owin'g the apparatus'in an alternativeposition, and 'zfFiga 5 is a diagrammatic view of circuit arrangementsofthe call box. 1 I i The system contemplates line wires 1 and 2 towhich substations A, B and C, Fig. 1, .areconnected. The substationdevices in- ;clude a step-bystepelement 3 having an arm 4 adapted whenin the proper. position to engage a spring 5 and i'f'the contact ismaintained long enoughtherebyto actuate a signal 6 through the agency ofa battery 7. The. arms an the diflerent stations are in diiierentangular positions so that the different stations respond to differentnumbers of impulses. Whenthe arm 4 passes the spring 5 of a givenstation momentarily when a station having a greater number of 10 isactuated. A second electromagnet 11 having an actuating. coil 12controls an armature 13. The armature 13 has a restraining pawl 14 whichmay also engage th'eteeth of the element? A spring 15 normallyholds thearmature 13 in an elevated position so that the pawl 14: is removed fromthe teethcf the element 3. When in this position the pawl 14 likewisehas raised the.

pawl 8 outof the teeth'of the element 3 and a spring 15 may restore thiselement. to nor I will explain my invention more in detail malagain'stthelstop 16. The pawl 8 is free 3 to slide overthe pawl 14. Theelectromag net 11 is slow actingby virtue of a short circuiting coil 17so thatthe' short rapid im-' pulses which actuate the electromagnet 10to step-up the element 3 will not permit release of the armature 13 butsaid armature remains in an attracted position until shortly after theimpulses cease entirely. The electromagnet 11 being slow acting requiresa rather long impulse initially to permit it to attract its armature 13,whereby to bring the pawls 8 and 14: into engagement with theteeth ofthe element 3.

My invention contemplates the operation of a system of this characterwith a calling device so, arranged that the long impulse necessary tobring the pawls 3 and 1 1- into engagement with the teeth of the element3 may be sent during the setting operation of thecall box which will nowbe described so that the reverse movement of the operating and- 4, 1show a call box 18 having a cover 19, inwhich cover ashaft 20 ismounted. On theoutside 'face of the box, a dial 21 is provided havingholes corresponding to the number of stations connected to the line. Ahandle 22 has a projection 23, which projection maybe inserted into anyof tlie openings of the dia l21. After the insertion of the handle inthe proper position, the dial 21 is rotated in a clockwise direction,therebyrotating an impulse wheel 23 of Figs. 3, 4 and 5 in what willappear in these illustrat'ions as a contra-clockwise direction, the

in' 'my said copending application.

illustrations of Figs. 3, 4; and 5 being rear views. A clock mechanism.24 then serves t0-;rotate the elements 21 and 23 back to their normalpositions so that stops 25 and 26 may engage, all as more clearly setforth Now when the impulse element 23, referring to Figs. 3, 4=and 5,moves in a contra-clockwise direction it moves a disk 27 in thedirection in which it is movingas said disk 27 .is frictionally engagedby said element 23. The disk 27 ismounted on a spring 28 and the initialmovement of the element 23 in a contra-clockwise direction brings thespring 28 into engagement with the spring 29, which contact remainsclosed until the clockwork rotates the element 23 in a clockwisedirection backto its initial position, which initial position is shownin Figs. 4: and 5. Thus during this setting operation of the-element23contact is closed between springs 28 and29 and we have a circuit fromspring .28to conductor 30, conductor 31, electromagnet 32, battery 33,conductor 34 and spring '29 which is closed with spring 28nxThus thearmature 35 of the magnet 32 remains attractedzduring the settingoperation; and :onelong impulse is transmitted over theline wires whichattracts'all of the electromagnets 10 and 11, thus bringing the pawls oand 14- into engagement with the teeth of the step up wheel 3. A spring36 is so arranged as normally not to contact with the element 23 exceptwhen it is in juxtaposition to the teeth 37 of said element or theelongated tooth 33. During the setting operation the tooth 38 engagesthe spring 36 and also as many of the teeth 37 as will later be neededto send the necessary impulses to call the pie-determined station. Butthis contacting of the spring 36 and the element 23 during the settingoperation has no further effect on the magnet 32 as the circuit throughthe same and the battery 33 is already closed by the springs 28 and 29.Immediately the reverse movement of the element 23 occurs, however, thefrictional movement between it and the disk 27 destroys the contactbetween the springs 28 and 29 and the magnet 32 is thereupon responsiveto the connection or disconnection established between the spring 36 andthe element 23 by virtue of its periodic engagement with the teeth 37,thus to send rapid impulses over the line wires 1 and 2 through theagency of the electromagnet 32 until the desired station has beenreached, at which time the tooth 38 engages the spring 36 and a longimpulse transmitted over the line wires which holds elements a and 5 incontact a sufficient length of time to actuate the signal 6. The element23 finally comes to rest when stops 25 and 26 engage and this positionof rest is the position occupied in Figs. 4 and 5 when the said spring36 is free from engagement with the element 23.

My invention further contemplates means whereby after one station iscalled, succeeding stations may be called without first restoring thestcp-by-stcp elements 3 to normal. These means include a push buttonactuating a lever 54 to place it in a position whereby it engages a pin55 mounted upon the reverse side of the impulse element lVhen the leverarm 54 thus engages the pin 55 as clearly shown in dotted lines in Fig.3, the impulse element 23 instead of being stopped in the normalposition indicated in Fig. 4t is stopped in the position indicated inFig. 3 when the spring 36 has moved upon the tooth 38 just a suliicientdistance equal to ELPPI'OXlDltItQlY onehalf the width of a tooth 37. Inthis condition it is apparent that contact is maintained through therelay 32 and current is maintained on the line so that the substationmechanisms remain in the position to which they were moved by theimpulses transmitted from the element 23, during which time the signalof the predeterminedand called station continues to operate. Supposethat this were, for in stance, the station A which responds to a givennumber of impulses and it is desired.

to also call station E which responds to a 1 49 f v t a greater numberof impulses and then station C which responds to a still greater numberof impulses. Button 53 is actuatedand the impulse element on its returnis held in the position of Fig. 3. Then if it takes, for instance, twomore impulses to call station B, the finger hold 22 is set into No. 2 ofthe dial and again actuated and the reverse movement of the element 23sendsthe two additional impulses and the said element is again held inthe positionof Fig. 3. Then if station C is desired which'may, for instance, respond to three more impulses than station E, the finger holdis set in No. 3 and the dial moved so that its return movement sendsthree impulses to call said station C.

It will thus be seen that the "system as a whole contemplates substationapparatus and a call box cooperating therewith by which the signalsending operation is accomplished during the setting operation of thecall box and the actual signal transmitting is accomplished during thereverse movement of the movable element of the call box so that theshortest possible time is consumed for the sendingof a signal. The

call box and substation apparatus cooperate thereby to produce a singlesystem having the advantages as above set forth.

Having thus particularly described one embodiment of my invention, whatI claim, as new and desire to secure by Letters Patent is:

1. A signallng system havlng a signal sendmg station and signalreceiving statlons all united by a common line circuit, a selectivecircuit closing element at each receiving station, a magnet foroperating each element, and a controlling magnet for each element, asignal sending device at the central station having impulse sendingmechanism adapted for aforward and reverse movement, and meansassociated therewith to effect the operative actuation of thecontrolling magnets during the forward and reverse movements of saidmechanism, and effecting the operative actuation of the selector magnetsduring the movement of said mechanism in one. direction only.

2. A signaling system having a signal sending station and.signalreceiving stations all united by a common line circuit, aselective circuit closing element at each receiving station, a magnetfor operating each fecting the operative actuation of the selectormagnets during the movement of said mechanism in one dlrectlon only,sald means fect the operative actuation of the control-.

ling magnets during the forward and reverse movements of sald mechanism,and effecting the operative actuation of the selector magnets during themovement of said mechanism in one direction only, said means including arelay, a source of current forimpulse transmitting purposes, and africtional circuit controlling element for said battery. 4. A signalingsystem comprising a signal sending station and substations, step by stepsignal receiving apparatus at each substation, holdingmeans for eachstep by step apparatus, and a call box at the central station adapted tobe set into position to send a call for anypredetermined station andhaving means toicontrol the step by step apparatusto select any desiredstation, when returninglto normal position and also having means tocontrol the holding means aforesaid during the setting operation of saidcall box in accordance with the desired substation. a

5. A signaling system comprising a signal sending station andsubstations, a call box at the sending station adapted to be set by handin position to select any predetermined station, and having automaticmeans operable when returning to normal position afterthe said operationto select the desired station, selective signal receiving devices ateach substatlonhaving means whereby said devices are inltrally placed111 conditlon to be selected for operating under control of the saidcall box, and means associated with said call box during the settingoperation of said call box to control the last aforesaid means. 6. Asignaling system comprising a signal sending station and substations, acall box at the sending station adapted to be set by hand in position toselect any predetermined station, and having automatic means operablewhen returning to normal position after the said operation to select thedesired sta tion, step by step signal receiving devices at eachsubstation having means whereby said devices are initially placed incondition to be selected for operating under control of the said callbox, and means associated with said call box operable during the settingaforesaid means. i y

7. Ina selective signal system, the combioperation ofsaid call box tocontrol the last nation of a main station and a plurality of I tionalimpulses so that the sum of the imsubstations, a main line uniting saidstations, a signal at each substation, a selector at each substationcontrolling the signal "thereat in response to a given number ofimpulses onsaid line and means at the main station whereby aplurality ofimpulses may be impressed onsaid line and means whereby a plurality ofcalls may be sent successively by impressing the impulses necessary forone call, and subsequently sending addipulses for the first call and theadditional impulses constitutes the subsequent calls.

In Witness whereof, I hereunto subscribe 15 my name this 16th day ofJanuary, A. D., 1911.

HARRY O. RUGH.

Witnesses:

HAZEL JONES, Or'ro M. WERMIGH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of .Patents,

' Washington, D. G.

